Flipping calls / puts is fine, but consider, how will they be denominated? If in BTC, then 1 unit = 1 BTC, what people are imagining. But, you can't then PAY in BTC for the puts/calls because you have weirdly non-linear payout streams.

The right thing to do is charge in USD for these options. It's going to take a little more time than 20 minutes, though. Sorry. We have a few outstanding options; you'll be contacted to see what you'd like to do with them.